diff --git a/doc/events.md b/doc/events.md
index 343e92e88..b2d123f48 100644
--- a/doc/events.md
+++ b/doc/events.md
@@ -16,3 +16,9 @@
 * `START_BROWSER` - emitted on browser session start. Emitted with [browser instance](../lib/browser/new-browser.js). If handler returns a promise tests will be executed in this session only after the promise is resolved.
 
 * `STOP_BROWSER` - emitted right before browser session end. Emitted with [browser instance](../lib/browser/new-browser.js). If handler returns a promise quit will be performed only after the promise is resolved.
+
+* `BEGIN` - runner event. Emitted on runner start with 1 argument `data`:
+    * `data.suiteCollection` - suite collection which will be run
+    * `data.config` - gemini config
+    * `data.totalStates` - number of states in collection
+    * `data.browserIds` - all browser ids from config
diff --git a/lib/runner/index.js b/lib/runner/index.js
index 21b8cff0f..b22609fe8 100644
--- a/lib/runner/index.js
+++ b/lib/runner/index.js
@@ -46,6 +46,7 @@ module.exports = class TestsRunner extends Runner {
 
     _formatBeginEventData(suiteCollection) {
         return {
+            suiteCollection,
             config: this.config,
             totalStates: _.sumBy(suiteCollection.allSuites(), (suite) => suite.states.length),
             browserIds: this.config.getBrowserIds()
diff --git a/test/unit/runner/index.js b/test/unit/runner/index.js
index c688fe5b7..e65bce2bd 100644
--- a/test/unit/runner/index.js
+++ b/test/unit/runner/index.js
@@ -133,7 +133,18 @@ describe('runner', () => {
                 return run(runner).then(() => assert.calledOnce(onBegin));
             });
 
-            it('should pass total number of states when emitting "BEGIN" event', () => {
+            it('should pass suite collection on "BEGIN" event', () => {
+                const runner = createRunner();
+                const suiteCollection = {allSuites: sinon.stub()};
+                const onBegin = sinon.spy().named('onBegin');
+
+                runner.on(Events.BEGIN, onBegin);
+
+                return run(runner, suiteCollection)
+                    .then(() => assert.calledWithMatch(onBegin, {suiteCollection}));
+            });
+
+            it('should pass total number of states on "BEGIN" event', () => {
                 const runner = createRunner();
                 const suiteCollection = {allSuites: sinon.stub()};
                 const suites = [
@@ -150,7 +161,7 @@ describe('runner', () => {
                 return run(runner, suiteCollection).then(() => assert.calledWithMatch(onBegin, {totalStates: 3}));
             });
 
-            it('should pass all browser ids when emitting "BEGIN" event', () => {
+            it('should pass all browser ids on "BEGIN" event', () => {
                 const runner = createRunner();
                 const onBegin = sinon.spy().named('onBegin');
 
@@ -161,7 +172,7 @@ describe('runner', () => {
                 return run(runner).then(() => assert.calledWithMatch(onBegin, {browserIds: ['bro1', 'bro2']}));
             });
 
-            it('should pass config when emitting "BEGIN" event', () => {
+            it('should pass config on "BEGIN" event', () => {
                 const runner = createRunner();
                 const config = runner.config;
                 const onBegin = sinon.spy().named('onBegin');